#include <stdio.h>
#include <unistd.h>
#include <string.h>
int main()
{
    fprintf(stdout, "c:fprintf\n");
    printf("c:printf\n");
    fputs("c:fputs\n", stdout);
    
    const char* arr = "os:write\n";
    write(1, arr, strlen(arr));

    fork();
    return 0;
}

